Multiplicity of infection

In microbiology, the multiplicity of infection or MOI is the ratio of agents (e.g. phage or more generally virus, bacteria) to infection targets (e.g. cell). For example, when referring to a group of cells inoculated with virus particles, the MOI is the ratio of the number of virus particles to the number of target cells present in a defined space.^[1]

^ Abedon, S. T.; Bartom, E. (2013-01-01), "Multiplicity of Infection", in Maloy, Stanley; Hughes, Kelly (eds.), Brenner's Encyclopedia of Genetics (Second Edition), San Diego: Academic Press, pp. 509–510, ISBN 978-0-08-096156-9, retrieved 2022-03-09

[1] Abedon, S. T.; Bartom, E. (2013-01-01), "Multiplicity of Infection", in Maloy, Stanley; Hughes, Kelly (eds.), Brenner's Encyclopedia of Genetics (Second Edition), San Diego: Academic Press, pp. 509–510, ISBN 978-0-08-096156-9, retrieved 2022-03-09

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